Download or read book Impulse Response Characterization of Breast Tomosynthesis Reconstruction with Parallel Imaging Configurations written by Apuroop Balla and published by . This book was released on 2010 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: To date, the most cost effective method for breast screening and early detection is mammography. The mammography technique uses a low-dose X-ray system to acquire images of the breast. Digital Breast tomosynthesis (DBT) is a new technique that acquires limited angle tomographic projection images to reconstruct three-dimensional information of the breast. The development of tomosynthesis is a substantial improvement over conventional tomography in that it allows retrospective reconstruction of an arbitrary number of planes with an acquisition dataset. We investigated three different tomosynthesis image reconstruction algorithms including shift-and-add (SAA), back projection (BP), filtered back projection (FBP) with parallel imaging geometry to improve breast cancer detection. We also examined the effect of varying the number of projection images (N) and total view angle (VA) for each reconstruction algorithm characterized by impulse response (IR) analysis. IR data were generated by simulating the projection images of a very thin wire, using various combinations of VA and N. Based on this project, we hope to optimize the image configuration to contribute to the breast tomosynthesis field.
Download or read book Digital Breast Tomosynthesis DBT Computational Analysis with Parallel Imaging Configurations to Improve Breast Cancer Detection written by Cleveland E. Rayford and published by . This book was released on 2011 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: The best way to conquer breast cancer is early detection of the disease. Research studies show that earlier detection results in the increase of life span of the affected person. A three-dimensional digital breast tomosynthesis (DBT) system has been created, which is hoped to surpass the technology of traditional mammography systems. In this research, the View Angle (VA) and number of projection images (N) were investigated and compared with parallel imaging configurations using two reconstruction algorithms, including Back Projection (BP) and Shift-And-Add (SAA). Modulation Transfer Function (MTF) analyses were conducted with both algorithms, in order to determine which method displayed better image qualities to ultimately improve the detection of breast cancer.
Download or read book Tomosynthesis Imaging written by Ingrid Reiser and published by Taylor & Francis. This book was released on 2016-04-19 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: An innovative, three-dimensional x-ray imaging technique that enhances projection radiography by adding depth resolution, Tomosynthesis Imaging explores tomosynthesis, an emerging limited-angle tomographic imaging technology that is being considered for use in a range of clinical applications, and is currently being used for breast cancer screening
Download or read book Image Reconstruction and Imaging Configuration Optimization with a Novel Nanotechnology Enabled Breast Tomosynthesis Multi beam X ray System written by Weihua Zhou and published by . This book was released on 2012 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Digital breast tomosynthesis is a new technology that provides three-dimensional information of the breast and makes it possible to distinguish the cancer from overlying breast tissues. We are dedicated to optimizing image reconstruction and imaging configuration for a new multi-beam parallel digital breast tomosynthesis prototype system. Four methodologies were employed to optimize the reconstruction algorithms and different imaging configurations for the prototype system. A linear tomosynthesis imaging analysis tool was used to investigate blurring-out reconstruction algorithms. Computer simulations of sphere and wire objects aimed at the performance of out-of-plane artifact removal. A frequency-domain-based methodology, relative NEQ(f) analysis, was investigated to evaluate the overall system performance based on the propagation of signal and noise. Conclusions were made to determine the optimal image reconstruction algorithm and imaging configuration of this new multi-beam parallel digital breast tomosynthesis prototype system for better image quality and system performance.
Download or read book Tomosynthesis Imaging written by Ingrid Reiser and published by Taylor & Francis. This book was released on 2014-03-12 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: An innovative, three-dimensional x-ray imaging technique that enhances projection radiography by adding depth resolution, Tomosynthesis Imaging explores tomosynthesis, an emerging limited-angle tomographic imaging technology that is being considered for use in a range of clinical applications, and is currently being used for breast cancer screening and diagnosis. While conventional mammography has been very successful in reducing breast cancer mortality, it is not perfect. A major limitation of mammography is that the recorded image represents the superposition of complex three-dimensional structures in the breast onto a two-dimensional plane, making detection and diagnosis of breast cancer challenging. Tomosynthesis produces quasi-three-dimensional images that can significantly enhance the visualization of important diagnostic features. This book highlights the flexibility of tomosynthesis systems for new clinical applications, and provides a detailed discussion of the tomosynthesis acquisition process and the impact of physical factors. It explores such topics as acquisition parameters, system components, modeling, image reconstruction algorithms, and system evaluation. Provides in-depth coverage of system design considerations, as well as image reconstruction strategies Describes the current state of clinical applications of tomosynthesis, including imaging of the breast and chest, as well as its use in radiotherapy Illustrates the merits of tomosynthesis imaging and its potential clinical applications in imaging of the breast and chest, as well as for radiation therapy Divided into five sections, this text delves into the history and development of tomosynthesis. It introduces tomosynthesis imaging, discusses imaging system design considerations, and reviews image reconstruction algorithms that have been developed for tomosynthesis. It also describes system evaluation methodologies, emphasizes current clinical applications, and examines the future direction for tomosynthesis.
Download or read book Comparison and Optimization of Breast Tomosynthesis Imaging Configurations Based on Computer Simulation and Analysis written by Linlin Cong and published by . This book was released on 2012 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Objective: Breast cancer is one of the most worldwide cancers among women and in United States it is also the second leading cause of cancer related death among women. The earlier breast cancer is detected, the better the outcome of treatment will be. So early detect technique for breast cancer is crucial. However traditional mammography as a standard and important detection technique has its own disadvantage, like motion blur with X-tube movement and only 2D information offered. But Tomosynthesis as an alternative breast cancer detection technique can overcome these disadvantages effectively. That is the reason why more and more academic concerns are put on Tomosynthesis. This paper is to research the effects of different X-tube distributions for the reconstructed images quality, expecting to offer a reference to design imaging configuration for Tomosynthesis. The reconstructed algorithm used here is maximum Likelihood Expectation Maximization (MLEM) algorithm, considering the image quality reconstructed by MLEM is the best with regards to our simulated imaging system.
Download or read book Objective Characterization of Image Reconstruction Algorithms in Computed Tomography and Digital Breast Tomosynthesis written by Sean Douglas Rose and published by . This book was released on 2018 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt: Both X-ray computed tomography (CT) and digital breast tomosynthesis (DBT) have become important clinical tools for the non-invasive assessment and diagnosis of disease in the breast. The continuing development and refinement of image reconstruction methods has led to significant improvements in image quality in both of these modalities. In particular, sparsity exploiting iterative image reconstruction (IIR) methods have demonstrated potential for yielding images of improved quality from the high-noise and limited angular data encountered in breast CT and DBT, respectively; however, realization of these improvements typically requires manual tuning of numerous parameters, often in a case-by-case fashion. Even in the absence of complications introduced by the incorporation of sparsity-exploiting regularizers, it is often difficult to establish a direct link between the parameters involved in specifying an IIR algorithm and the quality of the resulting reconstruction. This thesis aims to address this issue in the context of breast CT and DBT. As a step towards this goal, we simplify the problem by considering IIR without sparsity exploiting regularizers. The primary focus of this thesis is the characterization of parameter trends for such IIR algorithms in breast CT and DBT.
Download or read book Optimization and Comparison of Different Digital Mammographic Tomosynthesis Reconstruction Methods written by and published by . This book was released on 2007 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Digital breast tomosynthesis is a three dimensional imaging technique with limited angle series of projection images that allows the reconstruction of an arbitrary set of planes in the breast. Compared with standard mammography techniques, this method improves conspicuity of structures by removing the visual clutter associated with overlying anatomy. The objective of this project is to optimized and compare different tomosynthesis methods and choose the optimal one for breast imaging. Optimization of acquisition parameters will provide better reconstruction images of the breast, and related deblurring methods can remove out of plane blurred structures. We investigated several 3D tomosynthesis reconstruction algorithms and studied the effect of acquisition parameters for different reconstruction algorithms, according to physical measurements of impulse response analysis, modulation transfer function (MTF) and noise power spectrum.
Download or read book Tomosynthesis Breast Imaging Early Detection and Characterization of Breast Cancer written by and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our aim for the second year of this grant was to investigate the tomosynthetic image quality by performing experimental studies using the specially developed phantoms and to quantitate tomosynthesis image quality parameters by using image post processing. Moreover we have further improved the tomosynthetic image reconstruction by implementing faster and more versatile image reconstruction algorithm. In addition, we have investigated the low contrast lesion detection characteristics of our digital mammography system capable of tomosynthesis and did a comparison with a - conventional film/screen technique.
Download or read book Mammographic Image Analysis written by Ralph Highnam and published by Springer Science & Business Media. This book was released on 1999 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: The key contribution of the approach to x-ray mammographic image analysis developed in this monograph is a representation of the non-fatty compressed breast tissue that we show can be derived from a single mammogram. The importance of the representation, called hint, is that it removes all those changes in the image that are due only to the particular imaging conditions (for example, the film speed or exposure time), leaving just the non-fatty 'interesting' tissue. Normalising images in this way enables them to be enhanced and matched, and regions in them to be classified more reliably, because unnecessary, distracting variations have been eliminated. Part I of the monograph develops a model-based approach to x-ray mammography, Part II shows how it can be put to work successfully on a range of clinically-important tasks, while Part III develops a model and exploits it for contrast-enhanced MRI mammography. The final chapter points the way forward in a number of promising areas of research.
Download or read book The Handbook of Medical Image Perception and Techniques written by Ehsan Samei and published by Cambridge University Press. This book was released on 2018-12-13 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: A state-of-the-art review of key topics in medical image perception science and practice, including associated techniques, illustrations and examples. This second edition contains extensive updates and substantial new content. Written by key figures in the field, it covers a wide range of topics including signal detection, image interpretation and advanced image analysis (e.g. deep learning) techniques for interpretive and computational perception. It provides an overview of the key techniques of medical image perception and observer performance research, and includes examples and applications across clinical disciplines including radiology, pathology and oncology. A final chapter discusses the future prospects of medical image perception and assesses upcoming challenges and possibilities, enabling readers to identify new areas for research. Written for both newcomers to the field and experienced researchers and clinicians, this book provides a comprehensive reference for those interested in medical image perception as means to advance knowledge and improve human health.
Download or read book Breast Tomosynthesis E Book written by Liane E Philpotts and published by Elsevier Health Sciences. This book was released on 2016-11-02 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of tomosynthesis in breast imaging is growing rapidly due to its superior ability to identify and characterize normal findings, benign lesions, and breast cancer, as well as its optimal performance with dense breast tissue. Providing unparalleled coverage of this breakthrough breast imaging modality, Breast Tomosynthesis explains how this new modality can lead to enhanced interpretation and better patient outcomes. This new reference is an indispensable guide for today's practitioner looking to keep abreast of the latest developments with correlative findings, practical interpretation tips, physics, and information on how tomosynthesis differs from conventional 2D FFDM mammography. Over 900 high-quality images offer visual guidance to effectively reading and interpreting this key imaging modality. - Includes over 900 high-quality tomosynthesis and mammography images representing the spectrum of breast imaging. - Features the latest Breast Imaging Reporting and Data System (or BI-RADS) standards updated in February 2014. - Highlights practical tips to interpreting this new modality and how it differs from 2D mammography. - Details how integration of tomosynthesis drastically changes lesion work-up and overall workflow in the department. - "Tomo Tips" boxes offer tips and pitfalls for expert clinical guidance.
Download or read book Breast Diseases written by Radhakrishna Selvi and published by Springer. This book was released on 2014-12-05 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is challenging enough to be able to make a diagnosis in mammography, but the newer standards of care demand more than just providing a diagnosis. This book is an excellent resource to improve the understanding of breast diseases, recognize and manage problems encountered in breast imaging and clinical management of the breast diseases. With forty four chapters, this volume is divided into six sections on screening of breast cancer, imaging modalities, benign breast disorders, interventional procedures, pathological considerations and breast cancer. Breast Diseases: Imaging and Clinical Management is a crisp volume on clinical and multimodality breast imaging with emphasis on interventional procedures, pathology and the entire spectrum of breast cancers.
Download or read book Mammography and Beyond written by National Research Council and published by National Academies Press. This book was released on 2001-07-23 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: Each year more than 180,000 new cases of breast cancer are diagnosed in women in the U.S. If cancer is detected when small and local, treatment options are less dangerous, intrusive, and costly-and more likely to lead to a cure. Yet those simple facts belie the complexity of developing and disseminating acceptable techniques for breast cancer diagnosis. Even the most exciting new technologies remain clouded with uncertainty. Mammography and Beyond provides a comprehensive and up-to-date perspective on the state of breast cancer screening and diagnosis and recommends steps for developing the most reliable breast cancer detection methods possible. This book reviews the dramatic expansion of breast cancer awareness and screening, examining the capabilities and limitations of current and emerging technologies for breast cancer detection and their effectiveness at actually reducing deaths. The committee discusses issues including national policy toward breast cancer detection, roles of public and private agencies, problems in determining the success of a technique, availability of detection methods to specific populations of women, women's experience during the detection process, cost-benefit analyses, and more. Examining current practices and specifying research and other needs, Mammography and Beyond will be an indispensable resource to policy makers, public health officials, medical practitioners, researchers, women's health advocates, and concerned women and their families.
Download or read book Signs in MR Mammography written by Werner A. Kaiser and published by Springer Science & Business Media. This book was released on 2008-11-27 with total page 399 pages. Available in PDF, EPUB and Kindle. Book excerpt: Breast cancer is the leading cause of cancer-related deaths in women, and its prevalence has been steadily rising in recent decades. This book describes morphologic and kinetic signs that are important in the analysis of breast MR images before and after contrast administration and in various pulse sequences. It will help broaden the clinical application of MRM so that as many physicians as possible can make more accurate diagnoses.
Download or read book Three Dimensional Digital Tomosynthesis written by Yulia Levakhina and published by Springer Vieweg. This book was released on 2014-05-06 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Yulia Levakhina gives an introduction to the major challenges of image reconstruction in Digital Tomosynthesis (DT), particularly to the connection of the reconstruction problem with the incompleteness of the DT dataset. The author discusses the factors which cause the formation of limited angle artifacts and proposes how to account for them in order to improve image quality and axial resolution of modern DT. The addressed methods include a weighted non-linear back projection scheme for algebraic reconstruction and novel dual-axis acquisition geometry. All discussed algorithms and methods are supplemented by detailed illustrations, hints for practical implementation, pseudo-code, simulation results and real patient case examples.
Download or read book Breast Cancer written by Adnan Aydiner and published by Springer. This book was released on 2018-10-29 with total page 603 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a practical guide to the management of patients with breast malignancies. It serves as a quick reference book that gives the most up-to-date routine practical management strategies of breast cancer. Written and edited by leading experts, this handbook focuses on the application of conventional and novel treatment strategies to the care of patients with malignant breast disease and all stages of breast cancer. The chapters provide evidence-based treatment strategies for all patient subsets. Surgical, radiation, and medical treatment options are all discussed for each stage of breast cancer. It also includes the definitions of statistical terminologies and their usage in clinical practice and research. This is a comprehensive yet concise resource for residents, fellows, and early-career practitioners.
